摘要
利用铅锌矿中铅生成复盐沉淀 ,用EDTA标准溶液滴定锌 ,然后溶解复盐沉淀 ,加入过量EDTA标准溶液 ,用硝酸铅标准溶液反滴定。利用本方法测定铅锌矿中铅、锌 ,其铅的检测范围为质量分数 0 .4%～ 2 5 % ,锌的检测范围为质量分数 >1 % ,能满足地质检验中的分析误差要求。
After dissolving ore samples of zinc and lead, the lead ions were precipitated. The zinc ions were titrated by EDTA. The lead precipitation was then dissolved. After the addition of extra EDTA, the lead was determined by back-titration with standard PbNO_3. The detection limit was 0.4%～25% for lead, and 1% for zinc.
出处
《分析试验室》
CAS
CSCD
北大核心
2004年第7期63-65,共3页
Chinese Journal of Analysis Laboratory
